NDLI: A hydro-metallogel of an amphiphilic l-histidine with ferric ions: shear-triggered self-healing and shrinkage

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Inorganic Chemistry Frontiers Vol - 3 Issue - 9

Inorganic Chemistry Frontiers Vol - 3 Issue - 8

Inorganic Chemistry Frontiers Vol - 3 Issue - 7

Inorganic Chemistry Frontiers Vol - 3 Issue - 6

Inorganic Chemistry Frontiers Vol - 3 Issue - 5

Inorganic Chemistry Frontiers Vol - 3 Issue - 4

Inorganic Chemistry Frontiers Vol - 3 Issue - 3

Inorganic Chemistry Frontiers Vol - 3 Issue - 2

Inorganic Chemistry Frontiers Vol -2

Inorganic Chemistry Frontiers Vol -1

A hydro-metallogel of an amphiphilic l-histidine with ferric ions: shear-triggered self-healing and shrinkage

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Tianyu Chen, Jie Liu, Minghua
Copyright Year	2016
Abstract	Metallogels of an amphiphilic L-histidine derivative (LHC18) with various transition metal ions were investigated. It was found that while the amphiphile formed precipitates in aqueous solution when mixed with Cu2+, Zn2+, Ni2+, it formed a hydrogel with Fe3+. Interestingly, upon cooling the transparent solution of LHC18 with Fe3+ to room temperature gently without any interruption, the gel was formed. Upon further resting at room temperature, the gel underwent shrinkage and 90% of ferric water was expelled from the gel. On the other hand, if the as-formed gel was shaken or shear forces were applied, the gel would collapse into sol. The collapsed sol will recover to become the gel within one minute upon resting and the process can be repeated many times. In addition, once the gel experiences the thixotropic process, it will not shrink anymore. So far, various metallogels have been reported, and we show the first example of a metallogel that shows dual shrinkage and self-healing properties. Introduction to the international collaboration Our laboratory has a long history of collaboration with the European Union. Prof. T. Wang who has authored this paper has done his post-doctoral research at the Free University of Berlin in Germany with Prof. Dr J.-H. Fuhrhop. Some of our students have further fulfilled their PhD or worked as Postdoctoral Researchers in several European countries. In particular, two of them have been supported by the Humboldt Research Fellowships and have now returned to China and are actively working in the academic and industrial fields. We have collaborated with Prof. E. Benchou, Laboratoire de Spectrométrie Ionique et Moléculaire, Université Claude Bernard Lyon in France for investigation on the supramolecular chirality in monolayers at the air/water interface and co-published a paper.
Starting Page	1559
Ending Page	1565
Page Count	7
File Format	HTM / HTML PDF
ISSN	20521553
Volume Number	3
Issue Number	12
Journal	Inorganic Chemistry Frontiers
DOI	10.1039/c6qi00238b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	European Union Free University of Berlin Humboldt Research Fellowships Laboratoire de trie Ionique et culaire Claude Bernard Lyon Wang Benchou Germany China France Amphiphile Histidine Transition metal Gel Thixotropy International law Humboldt University of Berlin Research fellow Claude Bernard University Lyon 1 Supramolecular chirality
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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A hydro-metallogel of an amphiphilic l-histidine with ferric ions: shear-triggered self-healing and shrinkage

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